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I am having a problem with my central air conditioning blowing through the vents but it isn't cold. Here is the situation. I had my tenant test it. She told me the thermostat sometimes gives her problems. It's digital and she said if she turns the heat in the off position when she is gone, when she comes home and turns it back on the room temp doesn't register the inside temp. She said it doesn't always happen but every now and then it does. She said she takes it the cover off, takes the batteries out blows in there and shakes the batteries and then it works. I'm not sure if that would be wiring or if she needs new batteries (I forgot to ask if she put a new battery in). She put the air conditioning on the other day (central air). She said the thermostat she switched to cool in the "on" position and she set it at a very low temp. The air came out the vents but it wasn't cold. She ran it for a while too. So I had her go outside to see if the condensor was on. She did not hear the air conditioner running outside. So I'm not sure if it's electrical and something is wrong with the breaker for the air, the air conditioner or the thermostat. I would like someome to take a look at it. Also, please let me know if you have any idea of what the source of the problem is. Thank you!

Now why havent we been taught about the "shaking batteries" technique? Is this something the veteran techs want to keep away from the newbies?

Every customer you take for granted today will be someone else's tomorrow.

I always keep a few shaking batteries in my bag just in case. I keep them right next to my left handed hammer,the board stretcher and those sky hooks always comes in handy. lol

I went into a local hardware store where I knew the owner very well, had one of his employees come up to me and ask if he could help me find anything, gave him the story that I was looking for a Left Handed hammer, then proceeded to explain to him that there was a difference in the shape and style of hammers where a Right handed hammer was curved a certain way from handle to head and a left handed hammer was curved in the opposite direction. had him completely fooled by it, until Ridgid came out with their line of hammers that were for Left and Right handed people, bought one just to prove that there was actually something as a left handed hammer.

By the way you forgot to mention the wire stretcher, used for when your wire is just a few inches too short. use this instead of having to wire nut a short piece of wire in, looks so much better and the instructions tell you you much you can stretch it before changing the wire size so you do not undersize the wire.